baber/WOPTO huggingface dataset:
Patent RU-2740505-C1 (RU)
Inventor: Nasibulin Ilshat Maratovich
IPC: E21B43/27
Filed: 2020-08-10
Granted: 2021-01-14
Abstract: FIELD: oil and gas industry. 
     SUBSTANCE: invention relates to oil industry and, in particular, to methods for intensification of oil production from productive carbonate formations opened by wells with open horizontal shafts. Method comprises separating formation treatment intervals. Tubing string is lowered and equipped with a jet nozzle with a seat from below for a stop element thrown to the tubing string from the well mouth. Jet nozzle is installed opposite to the interval of acid treatment closest to the bottomhole. From the well mouth, the shutoff element is dropped into the tubing string. Process liquid is brought to the mounting seat of the jet nozzle. Acid treatment is carried out. At the end of the acid treatment, the jet nozzle is removed to the surface. Geophysical investigations in an open horizontal borehole are used to identify intervals with low and high permeabilities. Jet nozzle is equipped above seating seat with two rows of holes with possibility of acid pumping both through one row of holes, and simultaneously through two rows of holes. Acid treatment is carried out by moving the pipe string from the bottomhole to the mouth in a mode of jetting with formation of longitudinal planes in the bottomhole formation zone - opposite radial holes of the jet nozzle along the entire length of the open horizontal shaft. In intervals with high permeability treatment is performed through one row of jet nozzle under pressure up to 10.0 to 19.99 MPa, created by one pump unit. In intervals of open horizontal shaft with low permeability treatment is performed through two rows of jet nozzle under pressure from 20.0 to 35.0 MPa, created by two pump units. During movement of tubing string in direction from wellhead to well bottom after lifting of tubing string each time acid from tubing string through formed longitudinal cavities in bottom-hole zone of formation is forced into productive formation. At the end of acid treatment products of reaction of acid with rocks of productive formation are removed. Then the well is developed by swabbing. 
     EFFECT: improving efficiency and quality of acid treatment of open horizontal shaft, as well as exclusion of acid discharge to wellhead and improvement of acid work safety, reduction of processing duration, open horizontal borehole. 
     1 cl, 5 dwg
Patent RU-2768666-C1 (RU)
Inventor: OTT CHRISTIAN
IPC: B01F35/45
Filed: 2019-03-08
Granted: 2022-03-24
Abstract: FIELD: construction. 
     SUBSTANCE: invention relates to a mixing device. Mixing device comprises container (1) rotating around container axis for receiving mixed material, with hole (7) for emptying, located in its bottom, rotating mixing tool (2) located inside container (1), and closing element (8) for closing opening (7) for emptying, wherein closing element (8) can rotate about axis (14) of rotation for opening and closing opening (7) for emptying, wherein closing element (8) has an inner surface which, when emptying opening (7) is located inside container (1), an outer surface which, when emptying opening (7) is closed, is located outside container (1), and an edge surface, which when emptying opening (7) is located opposite to an edge surface of emptying opening (7), closing element (8), emptying opening (7) and rotation axis (14) are made and arranged so that the point located farthest from rotation axis (14) on the inner surface or the edge surface of closing element (8) describes a circle in the rotary movement, wherein closing element (8) is located inside the circle, and the edge surfaces of emptying hole (7) are located outside the circle, wherein closing element (8) ends at the same level with bottom, so that flat bottom surface is provided when closing element (8) is located in hole (7) for emptying. 
     EFFECT: providing a mixing device which enables to transfer the mixed material over a relatively small cross-section. 
     9 cl, 3 dwg
Patent RU-2740364-C1 (RU)
Inventor: ALEKSEEVA NATALIYA STEPANOVNA
IPC: A61B8/06
Filed: 2020-08-14
Granted: 2021-01-13
Abstract: FIELD: medicine. 
     SUBSTANCE: invention refers to medicine, particularly to neurology, and can be used for diagnosing peripheral disorders of vestibular and auditory functions caused by disturbed venous outflow from the jugular vein. That is ensured by ultrasonic examination of internal jugular veins (IJV) on the right and on the left. A horizontal cross-section and a vertical position of a patient are determined with a cross-sectional area of the veins, a linear velocity of the blood flow, a phasic blood flow and consistency of venous valves. If there is asymmetry of IJV by cross-sectional area and linear blood flow velocity, reduced linear blood flow velocity IJV less than 70 cm/s in horizontal and vertical positions, monophasic blood flow in horizontal position and valve insufficiency in the form of venous reflux is diagnosed with peripheral disturbance of vestibular and auditory functions. 
     EFFECT: invention enables diagnosing peripheral disorders of vestibular and auditory functions caused by disturbed venous outflow from an internal jugular vein in patients. 
     1 cl, 3 ex
Patent RU-2748537-C1 (RU)
Title: Method for producing oxide-silicon carbide cutting ceramics of new fraction
Inventor: Ryzhkin Anatolii Andreevich
IPC: B23B27/14
Filed: 2020-09-23
Granted: 2021-05-26
Abstract: FIELD: powder metallurgy. 
     SUBSTANCE: invention relates to powder metallurgy, in particular to the manufacture of high-strength cutting plates from oxide-silicon carbide ceramics. It can be used to equip cutting tools for processing difficult-to-cut steels and materials on metalworking machines. Silicon dioxide is calcined at a temperature of 1650−1750°С, subjected to fine vibration grinding on a vibrating machine for 2.5-3.0 hours and dried. After drying, mix 60% silicon dioxide, 3% zirconium carbide, 30% titanium carbide, 5% tungsten carbide and 2% nitrogen in liquid until uniform distribution over the volume and the formation of a suspension, which, after introducing binders into it, is subjected to spray drying to obtain a mixture. A cutting plate is pressed from the mixture obtained, sintering is carried out at a temperature of 3900-3950°С and short-term annealing with an exposure of 10.0-15.0 minutes at a temperature of 1600-1650°С, and the sintered plate is machined to obtain a roughness of the edges equal to 0, 08-0.16 microns.  
     EFFECT: increased intergranular corrosion resistance, wear resistance, plasticity, impact strength and resistance of cutting inserts when processing difficult-to-machine steels. 
     1 cl
Patent RU-2747153-C1 (RU)
Title: Способ получения нерастворимых в воде отходов сульфидов мышьяка
Inventor: Bulatov Konstantin Valerevich
IPC: C22B7/00
Filed: 2020-10-12
Granted: 2021-04-28
Abstract: Изобретение относится к способам получения нерастворимых в воде отходов сульфидов мышьяка, не загрязняющих природную среду при хранении или утилизации. Может быть использовано при приготовлении твердеющей закладочной смеси отработанного пространства в шахтах. Получение нерастворимых в воде сульфидных мышьяксодержащих отходов включает смешивание и спекание влажных отходов сульфидов мышьяка с порошковой элементной серой. Расход серы составляет 15-50 мас.% от массы влажных отходов сульфидов мышьяка. Спекание производят в ячеистой матрице при температуре 170-180°С и получают гранулы диаметром 4-6 мм. После чего на поверхность гранул наносят два слоя кузбасслака. Способ обеспечивает вымываемость мышьяка из отходов в пределах 0-0,01 мг/дм3в зависимости от величины рН воды. 5 табл., 2 пр.
Patent RU-2761621-C1 (RU)
Title: Composition of heat-conducting sealing material
Inventor: Mushenko Vasilii Dmitrievich
IPC: C08K5/5415
Filed: 2020-11-24
Granted: 2021-12-13
Abstract: FIELD: material engineering.  
     SUBSTANCE: present invention relates to the composition of a heat-conducting sealing material for sealing detachable and non-removable assemblies. This composition consists of a base and a hardener. The base contains: organosilicon polydimethylsiloxane rubber SKTN, powdered filler redoxide, characterized in that it additionally contains silicone oligomer PMS-20 and/or PMS-50, and as fillers also fine aluminum trihydrate, powdered quartz, powdered talc, aluminum oxide or aluminum nitride, as well as ethyl silicate-32 or ethyl silicate-40. The hardener contains: a vulcanization catalyst for silicone rubbers K-68 or K-18 and additionally contains silicone oligomer PMS-50, ethyl silicate-40, aluminum trihydrate with a particle size of 5-20 mcm, as well as carbon black or titanium dioxide. The mass ratios of the base and hardener are: from 10:0.5 to 10:1.0.  
     EFFECT: development of a heat-conducting sealant based on silicone elastomers and silicone oligomers, which is a multicomponent heterogeneous system filled with fine agglomerates of particles with different structures and with different heat-conducting properties, which has the required technological properties at the required level of thermal conductivity, dielectric and mechanical properties (low initial viscosity, sufficient viability and optimal time of complete curing).  
     1 cl, 4 tbl, 17 ex
Patent RU-2769667-C1 (RU)
Inventor: MOROZOV ALEKSANDR VIKTOROVICH
IPC: A01F29/00
Filed: 2020-12-08
Granted: 2022-04-04
Abstract: FIELD: agriculture. 
     SUBSTANCE: invention relates to the field of processing of agricultural products; it can be used for washing and grinding of root crops. The combined plant for washing and grinding of root crops contains a hollow case with a loading funnel, a feeding auger installed in the cavity of the case. Each turn of the helicoid of the feeding auger is formed by two crescent-shaped knives, which are metal plates with cutting edges made on the end arc-shaped working face and along the outer periphery, sharpening of which is made at an angle of no more than 20°. The plant contains a grinding organ made in the form of a knife and an unloading window closed with a deck. The plant also includes a washing zone, in which rotary nozzles are located diametrically on the horizontal axis of symmetry of the case at an angle α to the vertical axis of symmetry of the case. Slots are made in the lower part of the case of the washing zone. The plant is mounted on a frame consisting of four supports, between which a pallet is fixed, the bottom of which is made with slopes to a drain pipe. The plant includes a closed-cycle water purification system.  
     EFFECT: invention will reduce labor intensity, increase productivity and ensure savings in water consumption when preparing feed from root crops. 
     1 cl, 4 dwg
Patent RU-2754054-C1 (RU)
Inventor: Maksimov Evgenii Valerevich
IPC: F24F7/00
Filed: 2020-12-23
Granted: 2021-08-25
Abstract: FIELD: industrial ventilation systems.  
     SUBSTANCE: invention relates to devices used in gas purification and aspiration systems for transporting air, aerosols and gases in various chemical and technological processes, and can be used in chemical laboratories, on galvanizing lines, at non-ferrous metallurgy enterprises and at other enterprises where there are environments that cause increased corrosion. To achieve these results, a fan is proposed consisting of a fan housing consisting of a prismatic part, a suction nozzle and a discharge nozzle, an impeller mounted on an electric motor shaft, characterized in that the fan housing and the impeller are made of sheet thermoplastics, and the fan inlet and outlet directions are arranged linearly, while the suction nozzle of the housing is made in the form of a diffuser, and the discharge nozzle of the housing is made in the form of a confuser. 
     EFFECT: increase in the service life of the device when working in aggressive environments while maintaining the mechanical stability of the device; acquirement the properties of immunity to aggressive environments by the device; the absence of corrosion; the ability to move gases at elevated temperatures (up to 100 degrees Celsius); the creation of a fan with a universal housing without dividing into left and right and with the possibility of installation in the ventilation network without reference to the direction of rotation of the fan impeller; noise reduction; reduction of fan weight; improvement of aerodynamic characteristics while maintaining the possibility of using the fan in any chemical laboratories, metallurgical enterprises, electroplating industries; creation of a fan with the possibility of installation in the ventilation network regardless of the direction of rotation of the impeller and the position of the fan housing 
     6 cl, 1 dwg
Patent RU-2760854-C1 (RU)
Title: Method for predicting risk of ischemic stroke in patients with myocardial infarction
Inventor: CHICHKOVA MARINA ALEKSANDROVNA
IPC: A61B5/00
Filed: 2020-12-24
Granted: 2021-11-30
Abstract: FIELD: medicine; cardiology; neurology. 
     SUBSTANCE: in patients with myocardial infarction, prognostic criteria are identified, namely: a type of mitral valve lesion, a form of atrial fibrillation, the presence of other arrhythmias, the presence of sinoatrial and atrioventricular conduction disorders, heart failure according to the classification of the New York Heart Association, the presence of a stroke in the anamnesis, a type of a stroke in the anamnesis, the duration of hypertension, the maximum diastolic blood pressure, a type of aortic valve lesion, and the prognostic coefficient (Z) is calculated according to the original formula. At Z>0.5545, a high risk of ischemic stroke is predicted in a patient with myocardial infarction. At Z<0.5545, it is predicted that there is no risk of ischemic stroke in a patient with myocardial infarction. At Z=0.5545, the average risk of ischemic stroke is predicted in patients with myocardial infarction.  
     EFFECT: method makes it possible to identify the risk group for ischemic stroke in patients with myocardial infarction at an early stage, as well as to reduce the number of complications, the number of days of disability and the duration of the patient’s stay in the hospital, in addition, the method has high sensitivity and informativeness. 
     1 cl, 4 dwg
Patent RU-2750854-C1 (RU)
Inventor: KIROVSKAYA IRAIDA ALEKSEEVNA
IPC: G01N27/12
Filed: 2020-12-25
Granted: 2021-07-05
Abstract: Изобретение относится к области газового анализа, в частности к полупроводниковым датчикам диоксида азота. Полупроводниковый датчик диоксида азота содержит полупроводниковое основание, нанесенное на непроводящую подложку, при этом полупроводниковое основание выполнено из поликристаллической пленки твердого раствора состава (InAs) 0,18 (CdTe) 0,82.  Техническим результатом является повышение чувствительности датчика. 2 ил., 1 табл.
Patent RU-2752816-C1 (RU)
Inventor: ALEKSEEV LEONID VLADIMIROVICH
IPC: G06F1/3206
Filed: 2020-12-28
Granted: 2021-08-06
Abstract: Изобретение относится к области автономной электронной техники с питанием от автономных источников с ограниченным запасом энергии и может быть использовано в различных электронных устройствах с автономным питанием, с коротким рабочим циклом, запускаемым при необходимости по сигналу, и c длительным циклом ожидания, когда требуется расходовать минимум энергии батареи. Технический результат - максимально возможная экономия энергии автономного источника питания. Способ энергосбережения запирающей системы путем реализации следующих этапов: схема экономии энергии батареи ключа в электронной плате управления электронного ключа по окончании рабочего цикла по сигналу от микроконтроллера со второго входа ИЛИ снимает сигнал, который переводит управляемый источник питания в энергосберегающий режим, при котором полностью отключается подача питания от источника питания на схему управления, включая микроконтроллер; при необходимости включения управляемого источника питания ключа плата электронного замка получает питание от батареи ключа и подает специальный сигнал на электронный ключ путем передачи сигнала через контакт подачи напряжения питания и через специализированную схему выделения из внешнего события признака включения, специальной схемой экономии энергии возбуждается электрический сигнал, который подается на первый вход ИЛИ для включения источника питания в рабочий режим на время, достаточное для запуска микроконтроллера, при этом специализированная схема выделения из внешнего события признака включения не использует энергию батареи; микроконтроллер, после проведения начальной инициализации, своим выходным сигналом, подключенным ко второму входу ИЛИ, выдает сигнал для поддержания источника во включенном состоянии на время выполнения рабочего цикла, после окончания которого микроконтроллер снимает сигнал с второго входа ИЛИ и переводит источник питания в энергосберегающий режим. 1 з.п. ф-лы, 1 ил.
Patent RU-2756845-C1 (RU)
Title: Cathode-heating unit for an electron beam gun
Inventor: SHCHERBAKOV ALEKSANDR VLADIMIROVICH
IPC: H01J37/06
Filed: 2020-12-28
Granted: 2021-10-06
Abstract: FIELD: electrical engineering. 
     SUBSTANCE: invention relates to electrical engineering, in particular to instruments and devices for heat treatment of materials and products in vacuum; it can be used in the structure of an electron beam gun for melting refractory metals. A cathode-heating unit for the electron beam gun is fixed in a vacuum-sealed chamber consisting of two chambers: a high-vacuum cathode chamber and a low-vacuum melting chamber separated by a disk vacuum-strong insulator with a main disk cathode of an electronic filament in the center. Coaxially with the main disk cathode, an additional straight-channel cathode is installed in the high-vacuum cathode chamber, which is made in the form of a partitioned heater as a flat spiral heating element consisting of central and peripheral parts. Temperature sensors are installed pointwise and rigidly on surfaces of central and peripheral parts. Central and peripheral parts of the additional straight-channel cathode at points of supply of the filament voltage are attached to independent holders fixed in a case of the high-vacuum cathode chamber.  
     EFFECT: technical result is an increase in the reliability and an increase in the service life of the cathode-heating unit, an increase in the degree of uniformity of density of the electron beam from the main cathode of the electronic filament. 
     1 cl, 2 dwg
Patent RU-2758167-C1 (RU)
Title: Floating brake pad
Inventor: WU PEIFANG
IPC: F16D65/04
Filed: 2019-07-12
Granted: 2021-10-26
Abstract: FIELD: braking systems. 
     SUBSTANCE: present invention provides a floating type brake pad comprising a brake pad support disc (1) with a hidden outer surface (2) and a positioning hole (3); a friction member (4) containing a friction part (5) and a positioning part (6) inserted into the positioning hole (3), the first gap (7) being provided between the positioning part (6) and the positioning hole (3); a connecting element (8) for placing the friction element (4) on the support disc (1) of the brake shoe with the possibility of floating movement and an elastic bearing element (9) installed within the hidden outer surface (2), connected to the friction element (4) and containing a pilot hole designed for the introduction of the positioning part (6), wherein the outer edge of the contour of the elastic carrier (9) adjoins the inner side wall of the hidden outer surface (2) or between the outer edge of the contour of the elastic carrier (9) and the inner side wall of the hidden outer surface (2), a second gap (10) is provided, the value which is less than the value of the first gap (7). 
     EFFECT: improving the braking efficiency and service life of the floating type brake pad. 
     9 cl, 4 dwg
Patent RU-2756242-C1 (RU)
Title: Method for obtaining dry chamomile extract for farm animals and poultry (options)
Inventor: Ulrikh Elena Viktorovna
IPC: A23K10/30
Filed: 2021-03-02
Granted: 2021-09-28
Abstract: FIELD: feed industry.  
     SUBSTANCE: invention relates to the feed industry, namely to methods for obtaining dry extracts of medicinal plants. A method for obtaining dry chamomile extract for pharmaceutical feed additives for farm animals and poultry is proposed, in which the raw materials are crushed and moistened in a 9-10% water-ethanol solution for 10 hours, then transferred to an extractor, filled with a 30% water-ethanol solution, heated to 25°C and at the first stage extraction is carried out under vacuum, after which the extract is drained, and the mass is re-filled with a 4% water-ethanol solution, heated to 25°C and extraction is carried out under vacuum, after that, the extract is drained, the resulting mass is poured with distilled water at the third stage and extraction is carried out at a modulus of 1 kg÷2 liters for 30 minutes at a relative pressure of -0.91 kgf/cm 2 , after which the extract is also drained, the obtained extracts are combined and concentrated in a vacuum, and the thick extract is dried to a dry state. At the same time, the dried chamomile leaves are crushed to a particle size of 5 mm. A method for obtaining dry chamomile extract for pharmaceutical feed additives for farm animals and poultry is also proposed, in which the raw materials are crushed and moistened in a 20% water-ethanol solution for 9 hours, then transferred to an extractor, filled with a 30% water-ethanol solution, heated to 25°C and at the first stage extraction is carried out under vacuum, after which the extract is drained, and the mass is re-filled with a 4% water-ethanol solution, heated to 25°C and extraction is carried out under vacuum, after that, the extract is drained, the resulting mass is poured with distilled water at the third stage and extraction is carried out at a modulus of 1 kg÷2 liters for 30 minutes at a relative pressure of -0.91 kgf/cm 2 , after which the extract is also drained, the obtained extracts are combined and concentrated in a vacuum, and the thick extract is dried to a dry state. At the same time, the dried chamomile flowers are crushed to a particle size of 5 mm.  
     EFFECT: invention makes it possible to optimize the modes of water-ethanol extraction and drying, reduce the consumption of reagents and the duration of the process, increase the yield of the target product and its quality, as well as reduce the costs of subsequent purification, concentration and drying of the resulting product.  
     10 cl, 2 ex
Patent RU-2761510-C1 (RU)
Inventor: NGUYEN TUNG
IPC: H04N19/00
Filed: 2021-03-12
Granted: 2021-12-09
Abstract: Изобретение относится к кодированию изображений. Технический результат - снижение сложности и повышение эффективности кодирования. Такой результат достигается за счет использования одной и той же функции для зависимости контекста и зависимости параметра символизации от ранее кодированных/декодированных коэффициентов преобразования. Использование одной и той же функции - с изменяющимся параметром функции - может даже использоваться в отношении разных размеров блока преобразования и/или частотных участков блоков преобразования в случае, если коэффициенты преобразования пространственно располагаются в блоках преобразования. Другой разновидностью данной идеи является использование одной и той же функции для зависимости параметра символизации от ранее кодированных/декодированных коэффициентов преобразования для разных размеров блока преобразования текущего коэффициента преобразования, разных типов информационной составляющей блока преобразования текущего коэффициента преобразования и/или разных частотных участков, на которых располагается текущий коэффициент преобразования в блоке преобразования. 4 н. и 26 з.п. ф-лы, 15 ил., 1 табл.